mirror of https://github.com/PentHertz/srsLTE.git
fixing various issues in NB-IoT sync code detected by Coverity and clang-tidy
This commit is contained in:
parent
c9d3b61038
commit
ada4e6644f
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@ -100,7 +100,7 @@ SRSLTE_API void srslte_sync_nbiot_set_cfo_enable(srslte_sync_nbiot_t* q, bool en
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SRSLTE_API void srslte_sync_nbiot_set_cfo_cand_test_enable(srslte_sync_nbiot_t* q, bool enable);
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SRSLTE_API int srslte_sync_nbiot_set_cfo_cand(srslte_sync_nbiot_t* q, float* cand, const int num);
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SRSLTE_API int srslte_sync_nbiot_set_cfo_cand(srslte_sync_nbiot_t* q, const float* cand, const int num);
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SRSLTE_API void srslte_sync_nbiot_set_cfo_tol(srslte_sync_nbiot_t* q, float tol);
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@ -51,7 +51,9 @@ int srslte_npss_synch_init(srslte_npss_synch_t* q, uint32_t frame_size, uint32_t
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int ret = SRSLTE_ERROR_INVALID_INPUTS;
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if (q != NULL) {
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bzero(q, sizeof(srslte_npss_synch_t));
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ret = SRSLTE_ERROR;
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memset(q, 0, sizeof(srslte_npss_synch_t));
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q->fft_size = q->max_fft_size = fft_size;
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q->frame_size = q->max_frame_size = frame_size;
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@ -64,27 +66,27 @@ int srslte_npss_synch_init(srslte_npss_synch_t* q, uint32_t frame_size, uint32_t
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PRINT_ERR("Error allocating memory\n");
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goto clean_and_exit;
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}
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bzero(q->tmp_input, buffer_size * sizeof(cf_t));
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memset(q->tmp_input, 0, buffer_size * sizeof(cf_t));
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q->conv_output = srslte_vec_malloc(buffer_size * sizeof(cf_t));
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if (!q->conv_output) {
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fprintf(stderr, "Error allocating memory\n");
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goto clean_and_exit;
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}
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bzero(q->conv_output, sizeof(cf_t) * buffer_size);
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memset(q->conv_output, 0, sizeof(cf_t) * buffer_size);
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q->conv_output_avg = srslte_vec_malloc(buffer_size * sizeof(float));
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if (!q->conv_output_avg) {
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fprintf(stderr, "Error allocating memory\n");
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goto clean_and_exit;
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}
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bzero(q->conv_output_avg, sizeof(float) * buffer_size);
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memset(q->conv_output_avg, 0, sizeof(float) * buffer_size);
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#ifdef SRSLTE_NPSS_ACCUMULATE_ABS
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q->conv_output_abs = srslte_vec_malloc(buffer_size * sizeof(float));
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if (!q->conv_output_abs) {
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fprintf(stderr, "Error allocating memory\n");
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goto clean_and_exit;
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}
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bzero(q->conv_output_abs, sizeof(float) * buffer_size);
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memset(q->conv_output_abs, 0, sizeof(float) * buffer_size);
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#endif
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q->npss_signal_time = srslte_vec_malloc(buffer_size * sizeof(cf_t));
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@ -92,7 +94,7 @@ int srslte_npss_synch_init(srslte_npss_synch_t* q, uint32_t frame_size, uint32_t
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fprintf(stderr, "Error allocating memory\n");
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goto clean_and_exit;
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}
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bzero(q->npss_signal_time, sizeof(cf_t) * buffer_size);
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memset(q->npss_signal_time, 0, sizeof(cf_t) * buffer_size);
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// The NPSS is translated into the time domain
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if (srslte_npss_corr_init(q->npss_signal_time, fft_size, q->frame_size)) {
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@ -137,16 +139,15 @@ int srslte_npss_synch_resize(srslte_npss_synch_t* q, uint32_t frame_size, uint32
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q->frame_size = frame_size;
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uint32_t buffer_size = SRSLTE_NPSS_CORR_FILTER_LEN + frame_size + 1;
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bzero(q->tmp_input, buffer_size * sizeof(cf_t));
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bzero(q->conv_output, sizeof(cf_t) * buffer_size);
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bzero(q->conv_output_avg, sizeof(float) * buffer_size);
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memset(q->tmp_input, 0, buffer_size * sizeof(cf_t));
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memset(q->conv_output, 0, sizeof(cf_t) * buffer_size);
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memset(q->conv_output_avg, 0, sizeof(float) * buffer_size);
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#ifdef SRSLTE_NPSS_ACCUMULATE_ABS
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bzero(q->conv_output_abs, sizeof(float) * buffer_size);
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memset(q->conv_output_abs, 0, sizeof(float) * buffer_size);
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#endif
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// Re-generate NPSS sequences for this FFT size
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// bzero(q->npss_signal_time, sizeof(cf_t) * buffer_size);
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if (srslte_npss_corr_init(q->npss_signal_time, fft_size, q->frame_size)) {
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fprintf(stderr, "Error initiating NPSS detector for fft_size=%d\n", fft_size);
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return SRSLTE_ERROR;
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@ -166,11 +167,11 @@ int srslte_npss_synch_resize(srslte_npss_synch_t* q, uint32_t frame_size, uint32
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return ret;
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}
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int srslte_npss_corr_init(cf_t* npss_signal_time, uint32_t fft_size, uint32_t frame_size)
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int srslte_npss_corr_init(cf_t* npss_signal_time, const uint32_t fft_size, const uint32_t frame_size)
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{
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srslte_dft_plan_t plan;
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_Complex float npss_signal_pad[fft_size];
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_Complex float npss_signal[SRSLTE_NPSS_TOT_LEN];
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_Complex float npss_signal[SRSLTE_NPSS_TOT_LEN] = {};
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// generate correlation sequence
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srslte_npss_generate(npss_signal);
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@ -179,8 +180,8 @@ int srslte_npss_corr_init(cf_t* npss_signal_time, uint32_t fft_size, uint32_t fr
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#endif
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// zero buffers
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bzero(npss_signal_time, (fft_size + frame_size) * sizeof(cf_t));
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bzero(npss_signal_pad, fft_size * sizeof(cf_t));
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memset(npss_signal_time, 0, (fft_size + frame_size) * sizeof(cf_t));
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memset(npss_signal_pad, 0, fft_size * sizeof(cf_t));
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// construct dft plan and convert signal into the time domain
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if (srslte_dft_plan(&plan, fft_size, SRSLTE_DFT_BACKWARD, SRSLTE_DFT_COMPLEX)) {
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@ -195,7 +196,7 @@ int srslte_npss_corr_init(cf_t* npss_signal_time, uint32_t fft_size, uint32_t fr
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int output_len = 0;
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for (int i = 0; i < SRSLTE_NPSS_NUM_OFDM_SYMS; i++) {
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// zero buffer, copy NPSS symbol to appr. pos and transform to time-domain
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bzero(npss_signal_pad, fft_size * sizeof(cf_t));
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memset(npss_signal_pad, 0, fft_size * sizeof(cf_t));
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// 5th NPSS symbol has CP length of 10 symbols
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int cp_len = (i != 4) ? SRSLTE_CP_LEN_NORM(1, SRSLTE_NBIOT_FFT_SIZE) : SRSLTE_CP_LEN_NORM(0, SRSLTE_NBIOT_FFT_SIZE);
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@ -384,7 +385,7 @@ void srslte_npss_synch_reset(srslte_npss_synch_t* q)
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{
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if (q->conv_output_avg) {
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uint32_t buffer_size = SRSLTE_NPSS_CORR_FILTER_LEN + q->max_frame_size + 1;
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bzero(q->conv_output_avg, sizeof(float) * buffer_size);
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memset(q->conv_output_avg, 0, sizeof(float) * buffer_size);
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}
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}
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@ -412,7 +413,7 @@ int srslte_npss_generate(cf_t* signal)
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__real__ signal[l * SRSLTE_NPSS_LEN + n] = cosf(arg);
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__imag__ signal[l * SRSLTE_NPSS_LEN + n] = sinf(arg);
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signal[l * SRSLTE_NPSS_LEN + n] *= (float)factor_lut[l];
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signal[l * SRSLTE_NPSS_LEN + n] *= factor_lut[l];
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}
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}
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@ -425,7 +426,7 @@ void srslte_npss_put_subframe(
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srslte_npss_synch_t* q, cf_t* npss_signal, cf_t* sf, const uint32_t nof_prb, const uint32_t nbiot_prb_offset)
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{
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// skip first 3 OFDM symbols over all PRBs completely
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int k = 3 * nof_prb * SRSLTE_NRE + nbiot_prb_offset * SRSLTE_NRE;
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uint32_t k = 3 * nof_prb * SRSLTE_NRE + nbiot_prb_offset * SRSLTE_NRE;
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// put NPSS in each of the 11 symbols of the subframe
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for (int l = 0; l < SRSLTE_CP_NORM_SF_NSYMB - 3; l++) {
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@ -30,7 +30,6 @@
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#include "srslte/phy/utils/debug.h"
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#include "srslte/phy/utils/vector.h"
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#define MEANPEAK_EMA_ALPHA 0.1
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#define CFO_EMA_ALPHA 0.1
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#define CP_EMA_ALPHA 0.1
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#define DEFAULT_CFO_TOL 50.0 // Hz
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@ -43,6 +42,9 @@ int srslte_sync_nbiot_init(srslte_sync_nbiot_t* q, uint32_t frame_size, uint32_t
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{
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int ret = SRSLTE_ERROR_INVALID_INPUTS;
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if (q != NULL) {
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ret = SRSLTE_ERROR;
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q->n_id_ncell = SRSLTE_CELL_ID_UNKNOWN;
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q->mean_cfo = 0;
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q->cfo_ema_alpha = CFO_EMA_ALPHA;
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@ -101,6 +103,7 @@ int srslte_sync_nbiot_init(srslte_sync_nbiot_t* q, uint32_t frame_size, uint32_t
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}
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ret = SRSLTE_SUCCESS;
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}
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clean_exit:
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if (ret == SRSLTE_ERROR) {
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@ -134,7 +137,7 @@ int srslte_sync_nbiot_resize(srslte_sync_nbiot_t* q, uint32_t frame_size, uint32
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if (frame_size > q->max_frame_size) {
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fprintf(stderr, "Error in srslte_sync_nbiot_resize(): frame_size must be lower than initialized\n");
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return SRSLTE_ERROR;
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return ret;
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}
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q->mean_cfo = 0;
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q->cfo_i = 0;
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@ -147,21 +150,21 @@ int srslte_sync_nbiot_resize(srslte_sync_nbiot_t* q, uint32_t frame_size, uint32
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if (srslte_npss_synch_resize(&q->npss, max_offset, fft_size)) {
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fprintf(stderr, "Error resizing PSS object\n");
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return SRSLTE_ERROR;
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return ret;
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}
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if (srslte_nsss_synch_resize(&q->nsss, fft_size)) {
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fprintf(stderr, "Error resizing SSS object\n");
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return SRSLTE_ERROR;
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return ret;
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}
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if (srslte_cp_synch_resize(&q->cp_synch, fft_size)) {
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fprintf(stderr, "Error resizing CFO\n");
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return SRSLTE_ERROR;
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return ret;
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}
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if (srslte_cfo_resize(&q->cfocorr, q->frame_size)) {
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fprintf(stderr, "Error resizing CFO\n");
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return SRSLTE_ERROR;
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return ret;
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}
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// Update CFO tolerance
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@ -186,7 +189,7 @@ int srslte_sync_nbiot_resize(srslte_sync_nbiot_t* q, uint32_t frame_size, uint32
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srslte_sync_find_ret_t
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srslte_sync_nbiot_find(srslte_sync_nbiot_t* q, cf_t* input, uint32_t find_offset, uint32_t* peak_position)
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{
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srslte_sync_find_ret_t ret = SRSLTE_SYNC_ERROR;
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srslte_sync_find_ret_t ret = SRSLTE_SYNC_NOFOUND;
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int peak_pos = 0;
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if (peak_position) {
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@ -215,8 +218,6 @@ srslte_sync_nbiot_find(srslte_sync_nbiot_t* q, cf_t* input, uint32_t find_offset
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/* If peak is over threshold return success */
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if (q->peak_value >= q->threshold) {
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ret = SRSLTE_SYNC_FOUND;
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} else {
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ret = SRSLTE_SYNC_NOFOUND;
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}
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// estimate CFO after NPSS has been detected
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@ -278,7 +279,7 @@ void srslte_sync_nbiot_set_cfo_cand_test_enable(srslte_sync_nbiot_t* q, bool ena
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q->enable_cfo_cand_test = enable;
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}
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int srslte_sync_nbiot_set_cfo_cand(srslte_sync_nbiot_t* q, float* cand, const int num)
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int srslte_sync_nbiot_set_cfo_cand(srslte_sync_nbiot_t* q, const float* cand, const int num)
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{
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if (num > MAX_NUM_CFO_CANDITATES) {
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printf("Too many candidates, maximum is %d.\n", MAX_NUM_CFO_CANDITATES);
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